OR you could switch the 1 and the 0 in your diagram and have a properly
designed network!
-peter slow, CCN"Blah"
----- Original Message -----
From: "Michael L. Williams"
To:
Sent: Tuesday, May 29, 2001 10:59 PM
Subject: Re: Wanna Be a CCIE? Try This One [7:6076]
> Hey Chuck...... I just thought of something......... you only need 2
> routers to have 3 OSPF Areas.... in your diagram you show a router
"inside"
> each OSPF area, however, OSPF routers (at least in my understanding and
most
> Cisco Press book diagrams) are either totally inside an area (all
interfaces
> inside a single Area, although they may connect elsewhere using other
> routing protocols, we're only considering OSPF) or sit on the edge of
> multiple areas (ABRs). Having said that, I would think the problem now
> becomes one like this: (please excuse my ASCII drawing skills =)
>
> ________ ________ ________
> | Area 0 | | Area 1 | | Area 2 |
> | R1 R2 |
> | _______| |________| |_______|
>
> The Virtual Link is now between R2 and R1. In this "new" scenario, there
is
> no issue about where the traffic destined for Area 1 goes (it goes to R1).
> Can you further explain the scenario you speak of with 3 OSPF Areas with a
> router in each Area? That sounds more like a BGP thing where a router
is
> "inside" an AS but can connect to routers in other ASes (via eBGP) without
> being part of the other AS.
>
> Mike W.
>
> "Chuck Larrieu" wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Ever wonder what the CCIE candidates talk about on the CCIE list?
> >
> > The following message came through today. I thought the bright folks on
> this
> > list might be curious, and might want to venture an answer.
> >
> > Begin original question:
> >
> > Guys,
> >
> > I wonder if there is anybody who remembers the discussion on Virtual
> > Links in OSPF. It was posted some time ago but I can't seem to find it.
> >
> > The scenario was something like this:
> > ________ _______ _______
> > |Area 0 | |Area1| |Area2|
> > | R0 |--| R1 |--| R2 |
> > |______| |_____| |_____|
> >
> > There is a virtual link from area 2 to Area 0 via Area1. Traffic needs
to
> > get to R1 in Area 1 from R2 in Area 2. Assume that the virtual link has
to
> > use R1 (To create the V.Link). Does the traffic flow passed R1 (in Area
1)
> > to Area 0 and then back to area 1, or does the actual flow just to R1
from
> > R2.
> >
> > I cant remember the conclusion, and I cant seem to find it on the
> archives.
> > Quite interesting issues.
> >
> > End of original question
> >
> >
> > Chuck
> >
> > One IOS to forward them all.
> > One IOS to find them.
> > One IOS to summarize them all
> > And in the routing table bind them.
> >
> > -JRR Chambers-
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
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> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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